Plastic-block structure



W. L. CUTLER PLASTIC BLOCK STRUCTURE. APPLICATION FILED OCT- 28. 1919.

Patented June 28, 1921 UNITED. STATES PATENT OFFICE.

WILLIS L. CUTLER, 0F LEGRAND, IOWA.

PLASTIC-BLOCK STRUCTURE;

T 0 all zuhom it may concern:

Be it known that I, WILLIS L. CUTLER, a citizen of the United States, and a resident of Legrand, in the county of Marshall and Stateof Iowa, have invented a certain new and useful Plastic-Block Structure, of which the following is a specification.

The object of my invention is to provide sired the various blocks in a course may be I secured together and to the blocks of. other courses by a cement binder.

Still a further object is to provide a complete structure comprising blocks of the general type hereinbefore described, with a spaced wall secured to the ribs of said blocks, whereby a relative thin and strong moisture proof double walled structure is secured. V

With these and other objects in view my invention consists in the construction arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, ashereinafter more fully set forth, pointed out in my claim and illustrated in the accompanying drawings, in which:

The figure shows a top or plan view of a corner of a portion of two side walls of a structure built with blocks embodying my invention.

The block indicated by the reference character 10 has preferably flat inner and outer surfaces A and B.

Each block has on its inner surface adjacent to one side an inwardly extending longitudinal rib 11 from which project clenches or wires or the like 12. These wires project into and have their inner ends firmly embedded in the body of the block.

The end edge of the block 10 adjacent to the rib 11 is beveled from both sides inwardly as at 13 and 14 and is provided with a central longitudinal groove 15.

At the other end of the block are corresponding bevels 16 and 17 across the central portion of the block, at said other end the Specification of Letters Patent.

Patented J une 28, 1921.

Application filed October 28, 1918. Serial No. 334,055.

block preferably has a straight transverse surface 18.

' At the top and bottom of each block are central notches or recesses (3. The side walls of the recesses C, when the block is set on end are beveled, while the central portions of said notches are horizontal.

Extending across the top and bottom of each block from end to end is a groove 21.

In resting the blocks in a wall the blocks in each course are arranged, as shown for instance in the figure, with the beveled edges 16 and 17 adjacent to the beveled edges 13 and 14: of the adjacent block in the same course.

The blocks in the next course arestag gored with relation to the blocks in the first course mentioned, so that the notches A and B receive the projecting portions of two blocks of the next upper or lower course.

Thus it will be seen that blocks of each course are locked against horizontal inner tions 13, 1 1, 16 and 17 and also by the interlocking of the portions of the top and bottom of the blocks in one course which project into the notches of the blocks in the other course, but it is seen that any pivotal movement of any block would be prevented by the interlocking structure at the tops and bottoms of the blocks.

Any horizontal movement of one course with relation to the other, lengthwise of the wall is also prevented by the interlocking structure at the tops and bottom of the blocks.

For further locking together the blocks in the same course and in different courses, it will be noted that slush concrete or cement 22 may be poured into the grooves 15 at the tops, such slush concrete will travel down to the bottoms of the blocks, and thence laterally through the holes formed by the grooves 21 for forming a cement binder.

The ribs 11 with the members 12 project-.

tween the wall formed by the metal lath and g the plaster and the Wall formed bythe blocks 10.:

The ribs serve as a support for the metal lath, and also to space the metal lath from the blocks. 7

For making the corners in a wall built from blocks of the kind herein mentioned half blocks, may be used, or if desired special corner blocks may be provided such, for instance, as those shown in the figure, in which the block 15' is provided with a tongue 27, and the block F is. provided with a groove 28.

The block F. is providedwith a rib 11 adjacent to the corner, and the block E also has its adjacent to the corner for thoroughly fastening the metal lath at the corner,

Ordinary half blocks may be used for door and window openings.

My plastic block structure has numerous advantages many of which will be seen from the foregoing description.

It is easy with the blocks herein described, andwith the structure set forth to provide a double wall with an'air space. The completed wall, however, being comparatively thin, andbeing of the type which can be readily plastered, and to whichwooden members may be easilysecuredif desired;

The blocks in the, course a nd: in different courses are entirely interlocked together, so that the wall may belaid if desired Without mortar. f i

If it is desiredto make the wall air ti ht the grooves 15 and, 21 be filled wlth slush cement in the manner hereinbefore described.

Itlwill be noted, that in the modified form of the invention shown in Fig. 5, the block lOisprovided with a rib 11 on one side near one end and with a similar rib 11 on the other side near the opposite end. With such a block itis possible to fasten metal lath or the like on bothsides of the wall for making a triple wall with a double airspace.

Some changes may be made in theconstruction and arrangement of the various parts of my structure without departing fromthe essential purposes and features of my invention, and it is my intention to cover by my claim any modified formsof structure or useof mechanical equivalents which may be reasonably included within their scope. i

\ It Will be understood that the tongued and grooved corner blocks, such as those shown in the figure may each be made in rights and lefts which may be alternated in alternate courses, v

I claim as my invention In device of the class described, a block structure for corners, comprising a block, having a groove, and a block arranged at right: angles to said first block having a tongue received-in said groove, said blocks having inward projections formed withadjacent fitting beveled faces for making a relatively thick corner, and" reinforcing members mounted in' said projection arranged to overlap each other within the corner spaced from the block, Where they maybe fastened together.

Des Moines, Iowa May 13, 1919.

" 7 LLIS L, CUTLER. 

